Power Systems A buchholz relay is used for protection of a transformer against all external faults nether 1 nor 2 both 1 and 2 protection of a transformer against all internal faults protection of a transformer against all external faults nether 1 nor 2 both 1 and 2 protection of a transformer against all internal faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, interference increases power loss increases charging current increases All of these interference increases power loss increases charging current increases All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station? 18 MW 5 MW 9 MW 10 MW 18 MW 5 MW 9 MW 10 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line? (1 + j2 ) pu (0.5 + j1 ) pu (4 + j8 ) pu (2 + j4 ) pu (1 + j2 ) pu (0.5 + j1 ) pu (4 + j8 ) pu (2 + j4 ) pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pelton wheel turbine is a medium head turbine. none of above. high head turbine. low head turbine. medium head turbine. none of above. high head turbine. low head turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Location of a surge tank, in an hydro electric power station is near turbine. reservoir. tail race. dam. turbine. reservoir. tail race. dam. ANSWER DOWNLOAD EXAMIANS APP
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